Table 3. Summary of the diversity, state of knowledge, and expertise of the main taxonomic groups within the Humboldt Current subregion of South America.
| Taxonomic group | No. species1 | State of knowledge | No. introduced species | No. experts | No. ID guides2 |
| Domain Archaea | — | — | — | — | — |
| Domain Bacteria (including Cyanobacteria) | ≫15 | 2 | ND | 5 | 0 |
| Domain Eukarya | — | — | — | — | — |
| Kingdom Chromista | |||||
| Phaeophyta | 118 | 5 | 1 | 6 | 3 |
| Kingdom Plantae | — | — | — | — | — |
| Chlorophyta | 97 | 5 | 1 | 6 | 3 |
| Rhodophyta | 320 | 5 | 10 | 6 | 3 |
| Angiospermae | ND | 1 | 1 | 0 | 0 |
| Kingdom Protista (Protozoa) | — | — | — | — | — |
| Dinomastigota (Dinoflagellata) | ≫2 | 3 | ND | 12 | 3 |
| Foraminifera | 500 | 2 | ND | 1 | 0 |
| Kingdom Animalia | — | — | — | — | — |
| Porifera | 159 | 1 to 2 | 2 | 0 | 1 |
| Cnidaria | 517 | 4 | 1 | 1 | 3 |
| Platyhelminthes | 210 | 1 to 3 | ND | 8 | 1 |
| Mollusca | 1203 | 5 | 7 | 16 | 19 |
| Annelida | 649 | 2 to 5 | 8 | 8 | 6 |
| Crustacea | 3136 | 2 to 5 | 4 | 8 | 33 |
| Bryozoa | 401 | 5 | 2 | 2 | 2 |
| Echinodermata | 364 | 5 | 0 | 4 | 2 |
| Urochordata (Tunicata) | 109 | 5 | 5 | 4 | 9 |
| Other invertebrates | 776 | 1 to 5 | 0 | 12 | 19 |
| Vertebrata (Pisces) | 1167 | 5 | 35 | 9 | 4 |
| Other vertebrates | 209 | 1 to 5 | 0 | 37 | 11 |
| SUBTOTAL | 9935 | 1 to 5 | 77 | 145 | 122 |
| TOTAL REGIONAL DIVERSITY 3 | 10201 | 1 to 5 | 77 | 151 | 127 |
1
Sources of the reports: databases, scientific literature, books, field guides, technical reports.
2
Identification guides cited in References.
3
Total regional diversity, including all taxonomic groups as reported in Table S4.